Foreskin, penis stretching

I am having difficulty penis stretching with my foreskin pulled back. When I try and grip the head of my penis the skin just falls back to the front.Can you do stretching exercises without retracting the foreskin.I have a small penis and the skin will just not stay back.Anyone got any advice.

Don’t pull the skin back, I never did. It didn’t influence my PE career negatively, so it might be something to consider :) .

And if you do any stretching do it whit powder, you know to get a bather gripe around the dick!